KR200261833Y1 - Fire-fighting valve and linkage pipe - Google Patents

Abstract

The present invention relates to a fire fighting valve, comprising an air discharger and a pressure gauge to discharge the air in the fire water supply pipe, and to a fire valve that can easily measure the pressure in the fire water supply pipe.

The present invention is provided with an air discharge passage having an air discharge path and an insertion protrusion inserted into the air discharge passage and an elastic member connected to the insertion protrusion to apply an elastic force to the insertion protrusion, thereby applying an external force to the insertion protrusion to move the insertion protrusion. It also relates to the fire valve that activates the engine.

The present invention also relates to a fire valve having an air discharger which automatically stops the operation of the air discharger when the fire water is introduced into the air discharger as the air is discharged.

On the other hand, the present invention relates to a joint pipe that connects the fluid flow pipe and the pipe, it is provided with an air discharger and a pressure gauge to discharge the air in the pipe by the joint which can prevent the flow rate of the fluid flowing through the pipe is reduced It's about the coffin.

Description

FIRE-FIGHTING VALVE AND LINKAGE PIPE

The present invention relates to a fire fighting valve, comprising an air discharger and a pressure gauge to discharge the air in the fire water supply pipe, and to a fire valve that can easily measure the pressure in the fire water supply pipe.

Conventionally, fire fighting valves equipped with pressure gauges include fire fighting valves for fire extinguishing utility model registration (registration number: 20-0187817).

However, the fire extinguishing valve for fire extinguishing has the advantage of easily measuring the pressure in the fire water supply pipe and maintaining the pressure at an appropriate pressure. However, when the air is filled in the fire water supply pipe, there is no discharge means so that the fire valve is opened. When the air is first released there was a disadvantage that can not be extinguished immediately.

On the other hand, the present invention relates to a joint pipe connecting the fluid flow pipe and the pipe, having an air discharger and a pressure gauge to discharge the air in the flow pipe connected to the joint pipe and the joint pipe while the joint pipe and the joint pipe It relates to a joint pipe that can easily measure the pressure in the flow pipe connected to the.

As a conventional joint pipe, a thread part is formed at both ends of the joint pipe.

However, the conventional joint pipe has a disadvantage in that the flow rate of the pipe is reduced when the air flows through the pipe simply by performing a role of simply connecting the pipe between the pipe and the fluid flow.

The present invention provides a fire fighting valve having an air discharger for discharging the air in the fire water supply pipe to solve the above problems.

In addition, the present invention is provided with an air discharge passage having an air discharge path and an insertion protrusion inserted into the air discharge passage and an elastic member connected to the insertion protrusion to apply an elastic force to the insertion protrusion, thereby moving the insertion protrusion by applying an external force to the insertion protrusion. Provide a fire valve to operate the air exhauster.

In addition, the present invention provides a firefighting valve having an air discharger that automatically stops the operation of the air discharger when the fire water is introduced into the air discharger as the air is discharged.

In addition, the present invention may be provided with a hydraulic valve is provided that can easily measure the pressure in the fire water supply pipe.

On the other hand, in order to solve the above problems, the present invention provides a fitting pipe having an air discharger for discharging the air in the fitting pipe.

1 is a schematic perspective view of one embodiment of a fire fighting valve according to the present invention;

Figure 2a is a cross-sectional view of the air ejector body in Figure 1;

FIG. 2B is a schematic cross sectional view of the air exhauster in FIG. 1; FIG.

Figure 3 is an exploded perspective view of the air discharge in the second embodiment of the fire fighting valve according to the present invention.

Figure 4 is a schematic perspective view of the air discharge in the third embodiment of the fire fighting valve according to the present invention.

Figure 5 is a schematic perspective view of the air discharge in the fourth embodiment of the fire fighting valve according to the present invention.

6 is a schematic perspective view of a joint pipe according to the present invention;

* Explanation of symbols for main parts of the drawings

100: fire fighting valve

102: firefighting water inlet 104: firefighting water outlet

106: body

200: air ejector 210: air ejector body

222: air outlet passage 224: air outlet passage

226: air flow path 228: air flow path

230: coil spring

310: ejector body 320: cover plate

330: air inlet 340: air discharge pipe

350: first opening and closing 360: second opening and closing plug

370: leaf spring 372: straight groove

374: spring connection projection 380: piston

382: piston connecting projection 384: piston connecting groove

400: pressure gauge

410: ejector body 420: switchgear

510: bolt 520: body air discharge hole

600: joint pipe 610: joint pipe body

620: air exhauster 630: pressure gauge

In order to achieve the above object, the present invention provides a fire fighting valve having a fire water inlet, a fire water outlet, and a body, wherein the body has an air discharger for discharging air inside the body to the outside. To provide.

According to the present invention, in the first fire valve, the air discharge unit is inserted into an air discharge body, an air discharge path formed inside the air discharge body, and the air discharge path to open and close the air discharge path. It also provides a second fire-fighting valve, characterized in that having a projection and an elastic member connected to the insertion projection.

According to the present invention, in the second fire valve, the air discharge unit has a tubular discharger body, a cover plate formed at one end of the discharger body, and one end thereof protrudes outside the cover plate, and the other end thereof is the cover. An air discharge pipe inserted into and through the plate, a first opening and closing opening and closing of one end of the air discharge pipe, a second opening and closing opening and closing of the other end of the air discharge pipe, and air formed at the other end of the discharger body It has an inlet, the first opening and closing has a cylindrical peripheral portion formed with a female thread corresponding to the male thread formed at one end of the air discharge pipe, and the first opening and closing hole formed in the circumference, the second opening and closing the elastic member And a second opening / closing plug connected to the elastic member and opening and closing the other end of the air discharge pipe, and connected to the elastic member and directed toward the cover plate and the air inlet. It is also provided a third fire valve characterized in that it has a piston that is movable.

The present invention also provides a fourth fire-fighting valve in any one of the first to third fire-fighting valves, wherein the body further has a pressure gauge for measuring the pressure inside the body.

On the other hand, the present invention provides a first joint pipe in the joint pipe connecting the pipe and the fluid flow, the joint pipe has an air discharger for discharging the internal air to the outside do.

In addition, the present invention is the first joint pipe, the air discharger is an air discharger body, an air discharge passage formed in the inside of the air discharger body, and inserted into the air discharge passage to open and close the air discharge passage To provide a second joint pipe characterized in that it has an insertion projection, and an elastic member connected to the insertion projection.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a schematic perspective view of Embodiment 1 of a fire valve according to the present invention, FIG. 2A is a cross-sectional view of the air exhauster body in FIG. 1, FIG. 2B is a schematic cross-sectional view of the air ejector in FIG. 1, FIG. 4 is an exploded perspective view of the air discharger in the second embodiment of the fire valve according to the present invention, and FIG. 4 is an exploded perspective view of the air discharger in the third embodiment of the fire valve according to the present invention. In Example 4, an exploded perspective view of the air exhauster, and Fig. 6 shows a schematic perspective view of a fitting pipe according to the present invention.

Example 1

Referring to Figure 1, the fire valve according to the present invention has a fire water inlet 102, fire water outlet 104 and the body 106. The fire water inlet 102 is connected to a fire water supply pipe and the like, and the fire water outlet 104 is connected to a fire hose and the like.

Referring to Figure 1, the body 106 has an air discharger 200 for discharging the air in the body 106 to the outside near the fire water inlet 102.

Referring to FIG. 2A, the air ejector 200 has an air ejector body 210. An air discharge path 220 is formed inside the air discharger body 210. The air exhaust passage 220 is an air exhaust passage inlet 222 formed at one end of the air exhauster body 210 and the other end of the air exhaust passage outlet 224 and the air exhaust passage formed at the other end of the air exhauster body 210. An air flow path 226 is formed between the inlet 222 and the air discharge path outlet 224.

Referring to FIG. 2A, the air flow path 226 has an air flow path jaw portion 228. Referring to FIG. 2B, a coil spring 230 is mounted on the air flow path jaw portion 228, and an insertion protrusion 232 is mounted on the coil spring 230. The insertion protrusion 232 includes an upper portion having a cylindrical shape, a lower portion fitted to the coil spring 230, and an insertion protrusion jaw portion formed between the upper portion and the lower portion. The upper portion of the insertion protrusion 232 having a cylindrical shape is inserted into the air outlet passage 224. The air outlet passage 224 is formed as a conical passage corresponding to the upper portion of the insertion protrusion 232.

Referring again to FIG. 1, the body 106 further has a pressure gauge 400 that measures the pressure inside the body 106 near the fire water inlet 102.

Hereinafter, the operation of one embodiment having the above configuration will be described.

1 and 2b, when the valve is closed, there is air (hereinafter referred to as "useless air") in the fire water supply pipe connected to the fire water supply pipe 102 and the portion of the body 106 connected to the fire water supply pipe. It explains the path to discharge to the outside.

Normally, the pressure in the fire water supply pipe is maintained at a high pressure higher than atmospheric pressure. Therefore, when a force is applied to the upper portion of the insertion protrusion 232 inserted into the air outlet passage 224 using a pointed pin or the like, the insertion protrusion 232 moves toward the air outlet passage inlet 222.

When the insertion protrusion 232 moves toward the air discharge path inlet 222, the insertion protrusion jaw applies an elastic force to the coil spring 232, and the elastic force applied to the coil spring 232 is applied to the air flow path jaw portion 228. Is supported by.

On the other hand, since the upper portion of the air discharge path outlet 224 and the insertion protrusion 232 is conical, when the insertion protrusion 232 is moved toward the air discharge path inlet 222 side and the air discharge path outlet 224 A gap is generated between the upper portions of the insertion protrusions 232.

When a gap is generated between the air exhaust path outlet 224 and the upper portion of the insertion protrusion 232, the air which is higher than atmospheric pressure is discharged into the atmosphere through the air exhaust path outlet 224, and the air of the dance is released into the atmosphere. Accordingly, the fire water in the fire water supply pipe flows into the body 106 of the valve through the fire water inlet 102.

When the fire water is introduced into the body 106 of the valve to remove the force applied to the upper portion of the insertion protrusion (232).

When the force applied to the upper portion of the insertion protrusion 232 is removed, the restoring force of the coil spring 230 acts on the insertion protrusion jaw, and thus, the insertion protrusion 232 moves toward the air discharge path outlet 224 to insert the insertion protrusion. The upper portion of the 232 is in close contact with the air outlet 224.

Meanwhile, referring to FIG. 1, the pressure in the fire water supply pipe may be measured through the pressure gauge 400 installed in the body 106, so that the pressure of the fire water supply pipe and the portion of the body 106 communicating with the fire water supply pipe may be measured. It can be checked whether it is kept under pressure.

Although the present invention has been described with reference to the above embodiment, the present invention is not limited thereto.

In one embodiment, the insertion protrusion 232 may have an insertion protrusion jaw, but another embodiment may not have an insertion protrusion jaw. In this case, the insertion protrusion 232 should be provided with a groove or other connecting means for the connection with the coil spring 230.

In one embodiment, the insertion protrusion 232 has a lower portion of the insertion protrusion fitted to the coil spring 230, but another embodiment may not have a lower portion of the insertion protrusion. In this case, the insertion protrusion 232 may be regarded as being connected only by the compression force between the insertion protrusion jaw portion and the coil spring 230.

In one embodiment, the means for applying a restoring force connected to the insertion protrusion 232 is a coil spring 230, but in another embodiment, instead of the coil spring 230, a compression coil spring or a leaf spring or other elastic member. It may have a.

In one embodiment, the upper portion of the insertion protrusion is cylindrical, but in another embodiment, the upper portion of the insertion protrusion may be conical.

In the above embodiment, the air outlet passage 224 is conical, but in another embodiment, the air outlet passage 224 may be cylindrical. If the air outlet path 224 is cylindrical, it is necessary to allow the upper portion of the insertion protrusion to completely exit from the air outlet path 224 during the discharge of the useless air.

In the above embodiment, the fire fighting valve 100 has a pressure gauge 400, but in another embodiment, the fire fighting valve 100 may not have the pressure gauge 400.

Example 2

Another embodiment according to the present invention is the same as Example 1 except for the configuration of the air discharge.

Referring to Figure 3 will be described with respect to the air discharge of the fire fighting valve according to the present invention.

The air ejector according to the present invention has an ejector body 310. The ejector body 310 is cylindrical. One end of the ejector body 310 is covered with a cover plate 320, the other end is formed with an air inlet 330. 1 and 3, the air exhauster is connected to the body 106 of the valve through the air inlet 330.

One end of the cover plate 320 protrudes outside the cover plate 320, and the other end of the cover plate 320 is provided with an air discharge pipe 340 inserted into the cover plate 320. The air discharge pipe 340 is formed with a passage so that air can be discharged. A male screw is formed at one end of the air discharge pipe 340 protruding from the outside of the cover plate 320.

The first opening and closing 350 is extrapolated to one end of the air discharge pipe 340. The first switchgear 350 has a cylindrical shape in which one end is sealed and the other end is open. At the circumferential portion of the first switch 350, a female screw corresponding to the male screw formed at one end of the air discharge pipe 340 and a first opening / closing hole 352 through which air is discharged are formed.

The second opener is installed at the lower end of the other end of the air discharge pipe 340. The second opening and closing device includes a second opening and closing stopper 360, an elastic member leaf spring 370 and the piston 380. The second switchgear is described below.

A second opening and closing plug 360 for opening and closing the other end of the air discharge pipe 340 is installed by being detached to the lower end of the other end of the air discharge pipe 340. In FIG. 3, the second opening and closing plug 360 may have a disc shape, but may have a rectangular plate shape or the like.

The second opening and closing stopper 360 is connected to one side of the leaf spring 370 that is an elastic member, and the other side of the leaf spring 370 is connected to the cover plate 320. On the other hand, the leaf spring 370 has a straight groove 372 and the spring connecting projection 374.

The piston 380 is inserted into the ejector body 310 and installed below the leaf spring 370. On the upper part of the piston 380, a piston connecting groove 384 fitted into the straight groove 372 of the leaf spring 370 and a spring connecting protrusion 374 of the leaf spring 370 are fitted. Is formed. The piston 380 is preferably made of a material having a lower density than the fireman.

Hereinafter, the operation of one embodiment having the above configuration will be described.

1 and 3, when the valve is closed, there is air (hereinafter referred to as "useless air") in the fire water supply pipe connected to the fire water supply pipe 102 and the portion of the body 106 connected to the fire water supply pipe. It explains the path to discharge to the outside.

Normally, the pressure in the fire water supply pipe is maintained at a high pressure higher than atmospheric pressure. Therefore, when the first opening and closing hole 350 and the first opening and closing hole 352 leaves one end of the air discharge pipe 340, the useless air is discharged through the first opening and closing hole 352.

When the useless air is discharged, the fire water is introduced into the ejector body 310 through the air inlet 330.

The fire water flowing into the ejector body 310 moves the piston 380 toward the cover plate 320. Therefore, the leaf spring 370 connected to the piston 310 also moves toward the cover plate 320.

As the leaf spring 370 moves toward the cover plate 320, the second opening / closing plug 360 connected to the leaf spring 370 moves toward the cover plate 320 to come into contact with the other end of the air discharge pipe 340. The other end of the discharge pipe 340 is closed.

When the other end of the air discharge pipe 340 is closed, since the discharge of air through the first opening and closing hole 352 is stopped, it is preferable to rotate the first opening and closing 350 to move toward the air discharge pipe 340.

Meanwhile, referring to FIG. 1, the pressure in the fire water supply pipe may be measured through the pressure gauge 400 installed in the body 106, so that the pressure of the fire water supply pipe and the portion of the body 106 communicating with the fire water supply pipe may be measured. It can be checked whether it is kept under pressure.

Although the present invention has been described with reference to the above embodiment, the present invention is not limited thereto.

In the above embodiment, the connecting means of the leaf spring 370 and the piston 380 is a straight groove 372 and the piston connecting projection 382 and the spring connecting projection 374 and the piston connecting groove 384, In another embodiment, the connecting means of the leaf spring 370 and the piston 380 may be only the straight groove 372 and the piston connecting projection 382, or may be only the spring connecting projection 374 and the piston connecting groove 384. Or other means.

In one embodiment, the elastic member constituting the second opening and closing is a leaf spring 370, but another embodiment may be a coil spring or other elastic member.

In the above embodiment, the first opening and closing 350 may have the first opening and closing hole 352, but in another embodiment, the first opening and closing 350 may not have the first opening and closing hole 352. In this case, in order to discharge the useless air, the first switch 350 must be completely separated from the air discharge pipe 340.

In one embodiment, the connecting means of the first opening and closing 350 and the air discharge pipe 340 is a female screw formed in the first opening and closing 350 and the male screw formed in the air discharge pipe 340, but in another embodiment The connecting means of the first opener 350 and the air discharge pipe 340 may be an insertion groove formed in the first opener 350 and a protrusion formed in the air discharge pipe 340 or other means.

In the above embodiment, the fire fighting valve 100 has a pressure gauge 400, but in another embodiment, the fire fighting valve 100 may not have the pressure gauge 400.

Example 3

Another embodiment according to the present invention is the same as Example 1 except for the configuration of the air discharge.

In another embodiment according to the present invention with reference to Figure 4, it will be described for the air discharge of the fire valve.

The air ejector according to the present invention has an ejector body 410. The ejector body 410 is of a cylindrical shape with both ends open. The ejector body 410 is formed with a ejector body jaw portion 412 protruding in the circumferential direction on the circumference of the ejector body 410. In addition, an upper thread 414, which is a male thread, is formed between one end of the upper end of the ejector body jaw 412 and the ejector body jaw 412, and the other end of the ejector body jaw 412, and the ejector body jaw 412. The lower thread 416, which is a male thread, is formed between the two ends. 1 and 4, the air exhauster is connected to the body 106 of the valve through the lower male thread 416.

The switch 420 is extrapolated to the upper male thread 414 of the air discharger. The switch 420 has a cylindrical shape in which one end is closed and the other end is open. In the periphery of the switch 420, a switch female screw 422 corresponding to the upper screw thread 414 and a switch opening hole 424 through which air is discharged are formed. On the other hand, although not shown in the figure, a sealed one end of the switch 420 is provided with a packing (not shown) made of rubber or the like for close contact with the upper screw thread 414.

Hereinafter, the operation of one embodiment having the above configuration will be described.

1 and 4, when the valve is closed, there is no air (hereinafter referred to as "useless air") in the part of the fire water supply pipe connected to the fire water supply pipe 102 and the body of the fire water supply pipe connected to the fire water inlet 102. It explains the path to discharge to the outside.

Normally, the pressure in the fire water supply pipe is maintained at a high pressure higher than atmospheric pressure. Therefore, when the switch opening hole 424 deviates from one end of the upper end of the discharger body 410 by rotating the switch 420, the useless air is discharged through the opening hole 424.

When the useless air is discharged, fire water flows into the discharger body 410 through one end of the discharger body 410.

When fire water flows into the discharger body 410, the switch 420 is rotated so that the switch opening hole 424 is located between one end of the upper end of the discharger body 410 and the discharger body jaw portion 412 to discharge the air. Block it.

Meanwhile, referring to FIG. 1, the pressure in the fire water supply pipe may be measured through the pressure gauge 400 installed in the body 106, so that the pressure of the fire water supply pipe and the portion of the body 106 communicating with the fire water supply pipe may be measured. It can be checked whether it is kept under pressure.

Although the present invention has been described with reference to the above embodiment, the present invention is not limited thereto.

In the exemplary embodiment, a packing (not shown) made of rubber or the like is installed at the closed end of the switch 420 to be in close contact with the upper thread 414, but in another embodiment of the switch 420 The sealed one end portion of the 420 may not be provided with a packing (not shown) made of rubber or the like.

In one embodiment, the connecting means of the switch 420 and the ejector body 410 is the switch female screw 422 formed on the switch 420 and the upper male thread 414 formed on the ejector body 410, but the other In an embodiment, the connecting means of the switch 420 and the ejector body 410 may be an insertion groove formed in the switch 420 and a protrusion formed in the ejector body 410 or other means.

In the above embodiment, the fire fighting valve 100 has a pressure gauge 400, but in another embodiment, the fire fighting valve 100 may not have the pressure gauge 400.

Example 4

Another embodiment according to the present invention is the same as Example 1 except for the configuration of the air discharge.

In another embodiment according to the present invention with reference to Figure 5, it will be described for the air discharge of the fire valve.

The air discharger according to the present invention has an air discharge blocking ball stopper 510. The air discharge blocking bolt 510 has a bolt head 512 and a bolt thread 514 made of a male thread. The air discharge blocking plug 510 is connected to the body 106 through a bolt thread 514 of male thread.

The body 106 has a body air discharge hole 520 having a female thread corresponding to the bolt thread 514.

On the other hand, the lower end of the bolt head 512 is provided with a bolt head packing 513 made of rubber or the like so as to be in close contact with the upper end of the body air discharge hole 520.

Hereinafter, the operation of one embodiment having the above configuration will be described.

1 and 5, when the valve is closed, there is air (hereinafter referred to as "useless air") in the fire water supply pipe connected to the fire water supply pipe 102 and the portion of the body 106 connected to the fire water supply pipe. It explains the path to discharge to the outside.

Normally, the pressure in the fire water supply pipe is maintained at a high pressure higher than atmospheric pressure. Therefore, when the air discharge stopper 510 is separated from the body air discharge hole 520 by rotating the air discharge stopper 510, the useless air is discharged through the body air discharge hole 520.

When the air is sufficiently discharged, the air discharge stopper 510 is rotated to insert the air discharge stopper 510 into the body air discharge hole 520 to block fire water from being discharged through the body air discharge hole 520. .

Meanwhile, referring to FIG. 1, the pressure in the fire water supply pipe may be measured through the pressure gauge 400 installed in the body 106, so that the pressure of the fire water supply pipe and the portion of the body 106 communicating with the fire water supply pipe may be measured. It can be checked whether it is kept under pressure.

Although the present invention has been described with reference to the above embodiment, the present invention is not limited thereto.

In the above embodiment, the bolt head packing 513 made of rubber or the like is installed at the lower end of the bolt head 512 to be in close contact with the upper end of the body air discharge hole 520, but in another embodiment The lower end of the bolt head 512 may be such that the bolt head packing 513 made of rubber or the like is not installed.

In one embodiment, the connecting means of the air discharge stopper 510 and the body air discharge hole 520 is a female screw formed in the bolt thread 514 and the body air discharge hole 520 formed in the air discharge stopper 510. In another embodiment, the connection means of the air discharge plug 510 and the body air discharge hole 520 is formed in the insertion protrusion and the body air discharge hole 520 formed in the air discharge plug 510. It may be an insertion groove or other means.

In the above embodiment, the fire fighting valve 100 has a pressure gauge 400, but in another embodiment, the fire fighting valve 100 may not have the pressure gauge 400.

Example 5

Referring to Figure 6, the joint pipe 600 according to the present invention has a joint pipe body 610. The fitting tube 600 is connected between a tube (not shown) through which fluid flows and a tube (not shown).

Referring to Figure 6, the joint pipe body 610 has an air discharger 620 for discharging the air inside the joint pipe body 610 to the outside. Since the configuration of the air discharger 620 is the same as that of the air discharger 200 described in Embodiment 1, description thereof will be omitted.

Referring to FIG. 6, the joint pipe body 610 further includes a pressure gauge 630 for measuring pressure in the joint pipe body 610.

The operation of one embodiment having the above-described configuration will be described.

Referring to FIG. 6, when danceless air flows into the joint pipe body 610, the danceless air is discharged by operating the air discharger 620. Since the operation of the air ejector 620 is the same as the operation of the air ejector 200 described in Embodiment 1, description thereof will be omitted.

In addition, referring to Figure 6 it is possible to measure the pressure in the fitting pipe 600 through the pressure gauge 630 installed in the fitting pipe body 610, so that the pressure inside the fitting pipe 600 is maintained at an appropriate pressure. You can check whether or not.

Although the present invention has been described with reference to the above embodiment, the present invention is not limited thereto.

In another embodiment, the air discharger 620 installed in the fitting pipe body 610 may be variously modified. The modification is the same as described in Embodiment 1, and thus description thereof is omitted.

In addition, although the fitting pipe 600 has a pressure gauge 630 in one embodiment, the fitting pipe 600 may not have the pressure gauge 630 in another embodiment.

The fire fighting valve according to the present invention has an effect of discharging air existing in the fire fighting water supply pipe and the fire fighting valve to the outside by providing an air discharger in the body of the fire fighting valve. Therefore, there is an advantage that can supply the fire water immediately where the fire valve operation.

In addition, the present invention is provided with an air discharge passage having an air discharge path and an insertion protrusion inserted into the air discharge passage and an elastic member connected to the insertion protrusion to apply an elastic force to the insertion protrusion, thereby moving the insertion protrusion by applying an external force to the insertion protrusion. There is also an advantage that can easily operate the air vent.

In addition, according to the present invention, when the fire water is introduced into the air discharger as the air is discharged, the second opening and closing plug connected to the leaf spring closes the other end of the air discharge pipe to automatically operate the air discharger as the fire force exerts force on the piston. This has the advantage of being stopped.

In addition, the fire valve according to the present invention has the advantage that it is possible to maintain the pressure in the fire water supply pipe to the required pressure by frequently checking the pressure in the fire water supply pipe by providing a pressure gauge on the body of the fire valve.

On the other hand, the joint pipe according to the present invention has an effect that can discharge the air existing in the joint pipe and the fluid flow pipe connected to the joint pipe by providing an air discharge in the joint pipe body. Therefore, there is an advantage to increase the flow rate of the fluid passing through the flow tube by operating the air discharge.

Claims (6)

In the fire fighting valve having a fire water inlet, fire water outlet and the body, The body is a fire valve, characterized in that having an air discharger for discharging the air inside the body to the outside. The method of claim 1, The air discharge unit has an air discharger body, an air discharge passage formed inside the air discharger body, an insertion protrusion inserted into the air discharge passage to open and close the air discharge passage, and an elastic member connected to the insertion protrusion. Fire valve, characterized in that having a. The method of claim 1, The air discharge unit has a tubular discharger body, a cover plate formed at one end of the discharger body, one end is protruded to the outside of the cover plate and the other end is inserted into the cover plate through the air discharge pipe And a first opening and closing unit for opening and closing one end of the air discharge pipe, a second opening and closing unit for opening and closing the other end of the air discharge pipe, and an air inlet formed at the other end of the discharger body, The first opening and closing has a cylindrical circumference formed with a female thread corresponding to a male screw formed at one end of the air discharge pipe, and a first opening and closing hole formed in the circumference. The second opening and closing device has an elastic member, a second opening and closing plug connected to the elastic member to open and close the other end of the air discharge pipe, and a piston connected to the elastic member and movable in the direction of the cover plate and the air inlet. Fire fighting valve characterized in that. The method according to any one of claims 1 to 3, wherein The body is a fire valve, characterized in that further having a pressure gauge for measuring the pressure inside the body. In the joint pipe connecting the pipe and the flow of fluid, The joint pipe is a joint pipe, characterized in that the joint pipe has an air discharger for discharging the air inside. The method of claim 5, The air discharge unit has an air discharger body, an air discharge passage formed inside the air discharger body, an insertion protrusion inserted into the air discharge passage to open and close the air discharge passage, and an elastic member connected to the insertion protrusion. Joint pipe characterized in that having a.